package net.proef.sample.service;

import java.util.List;

import net.proef.sample.domain.Author;
import net.proef.sample.domain.Book;

public interface BookService {
	public Book getBookByIsbn(String isbn);

	public List<Book> getBooksByAuthor(String authorId);

	public List<Book> getAllBooks();

	public List<Author> getAllAuthors();

	public Author getAuthorById(String authorId);
}